ISWC · Musical Work

T-904738020-1

WHAT I'VE DONE

200 recordings

Last verified: May 15, 2026

T-904738020-1 is the International Standard Musical Work Code (ISWC) for the musical composition "WHAT I'VE DONE". ISWCs are ISO 15707 identifiers managed by CISAC; they identify the underlying song — its melody, lyrics, and arrangement — rather than any single recording. One composition can have many recordings (ISRCs). This work has 200 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

904738020Work number

1Check digit

Prefix:: "T" = musical work; "W" = work in progress.
Work number:: 9-digit unique work number assigned by CISAC.
Check digit:: ISO 7064 Mod 11-2 check digit that validates the rest of the code.

Credit Chain

ISRC200 recordings

ISWCWHAT I'VE DONE

Previously known as

T-900216953-1

What other identifiers does this connect to?

Releases (UPC)

198009035861 9005591091018 9325583042850 9340650009123 9340650015087

SourcesMusicBrainzCISAC2 sources

Verified on

CISAC ISWC registry search

Identifier Graph

What is ISWC T-904738020-1?

T-904738020-1 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition "WHAT I'VE DONE". ISWCs are defined by ISO 15707 and managed by CISAC. Unlike ISRCs which identify recordings, an ISWC identifies the underlying song — the melody, lyrics, and arrangement.

This work has 200 recordings (ISRCs) associated with it. Each recording represents a distinct version — such as the original, a remix, a live performance, or a cover — that shares the same underlying composition.

T-904738020-1

Format

Previously known as

What other identifiers does this connect to?

Verified on

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What is ISWC T-904738020-1?

T-904738020-1

Format

Previously known as

What other identifiers does this connect to?

Recordings (200)

Verified on

People also ask

What is ISWC T-904738020-1?

Recordings (200)